43.An alkane with a molecular formula C6H14 reacts with chlorine in the presence of light and heat. Four constitutionally isomeric monochlorides of molecular formula C6H13Cl are formed (along with a mixture of dichlorides, trichlorides, and so on). What is the most reasonable structure for the starting alkane?
(A)CH3CH2CH2CH2CH2CH3
(B)(CH3)2CHCH2CH2CH3
(C)CH3CH(CH2CH3)2
(D)(CH3)3CCH2CH3
(E)(CH3)2CHCH(CH3)2
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